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Tian Chen

3 papers indexed

openalexNature Communications2026-07-25

Deployable 3D architectures from wafer-fabricated precursors

Yue Wang, Kelvin Shum, Yuyang Song, Tian Chen

Abstract We demonstrate that standard wafer fabrication can produce free-standing, mechanically stable, doubly-curved 3D structures with prescribed Gaussian curvature — a capability not previously achieved through semiconductor manufacturing. The stability of the deployed structu…

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arxiveess.SPcs.IT2026-07-20

Radio Map Updating from Streaming Spectrum Measurements via Memory-Based Online Gaussian Processes

Yuanyuan Deng, Bo Zhou, Tian Chen, Shijian Gao, Jia Yan, Lantu Guo, et al.

Radio maps, which estimate spatial radio-frequency characteristics from spectrum measurements, are essential for applications such as spectrum management and network planning. With the continuous arrival of spectrum measurements, conventional batch processing methods for radio ma…

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crossrefApplied Sciences2025-03-30Cited by 6

QMIX-GNN: A Graph Neural Network-Based Heterogeneous Multi-Agent Reinforcement Learning Model for Improved Collaboration and Decision-Making

Taiyin Zhao, Tian Chen, Bing Zhang

In multi-agent reinforcement learning, the fully centralized approach suffers from issues such as explosion of the joint state and action spaces, leading to performance degradation. On the other hand, the fully decentralized approach relies on agents that focus solely on maximizi…

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